Bump actions/actions-runner from 2.318.0 to 2.319.1 in /images/gh_runner

Bumps [actions/actions-runner](https://github.com/actions/runner) from 2.318.0 to 2.319.1.
- [Release notes](https://github.com/actions/runner/releases)
- [Changelog](https://github.com/actions/runner/blob/v2.319.1/releaseNote.md)
- [Commits](actions/runner@v2.318.0...v2.319.1)

---
updated-dependencies:
- dependency-name: actions/actions-runner
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

images/gh_runner/Dockerfile

@@ -2,7 +2,7 @@
 FROM ghcr.io/nvidia/holodeck:v0.2.1 AS holodeck
 
 # https://github.com/actions/runner/blob/main/images/Dockerfile
-FROM ghcr.io/actions/actions-runner:2.318.0 AS runner
+FROM ghcr.io/actions/actions-runner:2.319.1 AS runner
 
 USER root